Is accessing kubernetes dashboard remotely possible?

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Is accessing kubernetes dashboard remotely possible?
Nov 23, 2018 in Kubernetes by Ali
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+1 vote

To access to Kubernetes Dashboard via proxy from remote machine, you will need to grant ClusterRole to allow access to dashboard.

Create new file and insert following details.

vi dashboard-access.yaml
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: kube-dashboard
  labels:
    k8s-app: kube-dashboard
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: cluster-admin
subjects:
- kind: ServiceAccount
  name: kube-dashboard
  namespace: kube-system

Now apply changes to Kubernetes Cluster to grant access to dashboard.

kubectl create -f dashboard-access.yaml
answered Nov 23, 2018 by Hannah
• 14,080 points
+1 vote
As far as I know, I don't think it's possible to access the dashboard remotely. You can only access your dashboard from the master node.
answered Apr 26 by Vaidya
+1 vote

Kubernetes API server is exposed and accessible from outside you can directly access dashboard at: 

https://<master-ip>:<apiserver-port>/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/
answered Apr 26 by Rick
0 votes

It seems only the api request from localhost to the dashboard service can be accepted in proxy mode. Then the quest becomes how to make a request from a remote host look like from localhost of where the proxy is running (k8s master node, in my case).

Here are the steps:

1,  deploy dashboard serive on master node:

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/aio/deploy/recommended/kubernetes-dashboard.yaml

2, start proxy: 
kubectl proxy&

3, create your own secret and obtain the token:
kubectl create serviceaccount <account name>
kubectl create clusterrolebinding dashboard-admin --clusterrole=cluster-admin --serviceaccount=default:<account name>
kubectl get secret
kubectl describe secret <secret name>

4, create ssh tunnel from a remote host outside of the cluster where you would access dashboard:
ssh -L 9999:127.0.0.1:8001 -N -f -l <user name> <k8s master host name or ip>
"-L" local port forwarding
"9999" is a local host port. it can be any available port. It can also be 8001
"127.0.0.1:8001" is where the proxy runs on k8s master host
Password may be required for the <user name> on the master host to create a tunnel
This command forwards any local request on port 9999 to"127.0.0.1:8001" on the master host

5, open a browser with the following api:
http://localhost:9999/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/

Then select "token" and past the token to log in the dashboard.

This approach does not require any addtional configuration in k8s cluster. It is recommended by Oracle: https://docs.oracle.com/cd/E52668_01/E88884/html/kube_admin_dashboard.html
Good luck.
answered May 2 by Ling
Hey @Ling, Thanks for such a nice explanation. I shall try it out. But could you please explain the third step? I do not understand why do we need to create a secret token?

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